Combined turbo codes and interleaver design

Author

Yuan, Jinhong ; Vucetic, Branka ; Feng, Wen

Author_Institution

Telecommun. Lab., Sydney Univ., NSW, Australia

Volume

47

Issue

4

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

484

Lastpage

487

Abstract

The impact of the distance spectrum and interleaver structure on the bit error probability of turbo codes is considered. A new turbo code design method for Gaussian channels is presented. The proposed method combines a search for good component codes with interleaver design. The optimal distance spectrum is used as the design criterion to construct good turbo component codes at low signal-to-noise ratios (SNRs). In addition, an interleaver design method is proposed. This design improves the code performance at high SNR. Search for good component codes at low SNR is combined with a code matched interleaver design. This results in new turbo codes with a superior error performance relative to the best known codes at both low and high SNR. The performance is verified by both analysis and simulation

Keywords

AWGN channels; error statistics; interleaved codes; optimisation; spectral analysis; turbo codes; AWGN channels; additive white Gaussian channels; bit error probability; code design method; code matched interleaver design; code performance; component codes; error performance; high SNR; interleaver structure; low SNR; optimal distance spectrum; signal-to-noise ratios; simulation; turbo codes; AWGN; Additive white noise; Bit error rate; Block codes; Design methodology; Error probability; Gaussian channels; Signal design; Signal to noise ratio; Turbo codes;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.764913

Filename

764913